Sickle-bar holder.



vA. IVIARTINSON.

SICKLE BAR HOLDER.

APPLICATloN FILED MAR. l5. 1916.

. ,29%,2-@5 atented Nov. 19H3.

ALFRED MARTINSON, F ROCK ISLAND, ILLINOIS.

SICKLE-BAR HOLDER.

Leonesa.

Specification of Letters Patent.

rasanten Nov. e, ieic.

Application filed March 15, 1916. Serial No. 84,400.

To @ZZ whom t may concern Be it known that I, ALFRED MARTINsoN, acitizen of the United States, residing at Rock Island7 in the county ofRock island and State of Illinois, have invented new and usefulImprovements in Sickle-Bar Holders, of which the following is aspecification.

rllhis invention contemplates the provision of a holder for sickle barsor the like, while the latter are being sharpened.

rlhc primary object of the invention resides in the provision of a meansby which the sickle bar is yieldably supported while being sharpened,thereby relieving the arms of the operator of undue weight, while boththe sickle bar and supporting means therefor can be easily adjusted tothe proper position with respect to the grinding device.

Other objects will appear as the nature of the invention is betterunderstood from the following description when read in connection withthe accompanying drawing, the invention residing in the construction,combination and arrangement of parts as claimed.

1n the drawing forming part of this specification like numerals ofreference indicate similar parts in the several views and wherein z-Figure 1 is a perspective view showing the manner of using the device.Fig. 2 is an enlarged detail sectional view through the supporting arm.

Before entering into a detail description of what is herein shown Idesire to have it understood that the same is merely illustrative of oneembodiment of the invention, to which l do not limit myself and thatsuch changes in the construction and arrangement of parts may beresorted to when desired as fall within the scope of what is claimed.

Referring more particularly to the drawing in. detail A indicatesgenerally a grinding device, which as shown in this instance includes aframe 10, having a grind stone 12 mounted thereon for rotation, andoperated by means of the foot pedals 13, the frame being provided with aseat 14 for the operator. Any suitable sharpening device iowever may beemployed for bringing the sickle bar to a cutting edge, as this does notform a part of the invention.

rIfhe holder forming the subject matter of my invention preferablyconsists of a hollow arm 14 projecting horizontally from a fixed support15 which may be a wall, tree or the like, the arm being mounted in asuitable bracket 16 to permit of a lateral swinging adjustment thereof.The arm has connected therewith at a point in its length one end of abrace rod 17, the opposite end being connected with a suitable bracket18 mounted on the support 15 an appreciable distance above the bracket16, and capable of lateral swinging movement with the arm. rIhe lowerend of the arm is forked and embraces the arm 14, the terminals of theforked end of the brace being connected by means of a rivet 19, whichlatter passes through the arm 14.

In connection with the arm 14 l provide a means by which the sickle barindicated at B can be yieldably supported, and as shown in this instancethe means consists of a coiled spring Q0 fitted within the arm ll andhaving one end connected with a rivet 19 while its opposite end issecured to the adjacent end of a flexible element 21. The flexibleelement is trained over a pulley :22 as shown, and is suspended from theforward end of the arm being connected with the flexible element 23which latter is preferably in the nature of a chain. Manifestly thesickle bar B is supported from the chain, which latter is not onlysufficiently strong for this purpose, but permits of a quick adjustmentof the bar throughout the length of the chain, so that the bar can beproperly positioned with respect to the grind stone 11. A hook element2d is employed, and is adapted to have one of its ends hooked betweenthe teeth of the sickle bar, while the opposite end is adapted to beinterchangeably hooked into the links of the chain, which arrangementallows the sickle bar to be supported at the proper angle tosuccessively bring the teeth into engagement with the grind stone 11. Byreason of the fact that the arm 14 is mounted for lateral adjustment,coupled with the fact that the sickle bar is supported from one end bymeans of the flexible element 23, it will be noted that the bar B can beswung to either side of the operator, or in a position most convenientfor the operator to handle while bringing the sickle bar to a cuttingedge. The yieldable connection between the sickle bar and the arm 14supports the major portion of the weight of the bar, thereby relievingthe arms of the operator of undue weight and strain.

While it is believed that from. the fore- Q Y Y l 1,204,295

going description the nature and advantages of the invention will bereadily apparent, it might here besta-ted that theeomponent parts of theVholder may vary in both design and proportion Without departing fromthe spirit of the invention.

l/Vhat is claimed is A holder of the Class described comprising incombination With a ixedsupport, a hollow arm projecting horizontallytherefrom and mounted for lateral swinging movement, a brace for saidarm, a yielda-ble means arranged Within the arm, a pulley arrangedadjacent the forward end thereof, a flexible element connected 'With theyieldable means and suspended from said Varm, passing over said pulley7and means for adjustaloly supporting the Work from the 1eX- ibleelement.

In testimony whereof l: aHiX my signature 20 in presence of twoWitnesses.

ALFRED MARTINSON. Witnesses DAVID BnEKsTRoM, OLGA LAnsoN.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patent@ Washington, D. C. I

